Handle device for a modularized casing

ABSTRACT

A handle device for a modularized casing is composed of a rectangular inner casing; a handle; a shaft pin which is flexibly connected to the pivoting hole of casing and the pivoting hole of handle being rotated against the shaft pin; and an outer casing, the front sliding wall/rear sliding wall can be frictionally sliding and be exerting a force on a circumferential surface of the pillar. The handle can be moved into or out of an emplacing space, so as to prevent the inner casing from being dropped on a ground surface due to an excessive exertion of force upon pulling out the inner casing from the emplacement sink. In addition, a large vibration force will not be created, such that the handle can be tightly locked and positioned on the inner casing, after inserting the inner casing into the emplacement sink.

BACKGROUND OF THE INVENTION

a) Field of the Invention

The present invention relates to a handle device for a modularizedcasing and more particularly to a handle device which is applied to amodularized casing of computer host, a modularized casing of data card,or a modularized casing of circuit card that is inserted into/pulled outof an emplacement sink of an outer casing. The handle device is providedwith a two-stage force exertion to enhance a safety of pulling out themodularized casing from the emplacement sink, so as to prevent thecasing from being dropped on a ground surface due to an excessiveexertion of force; and to assure a positioning and rigidity when themodularized casing is locked and fixed in the emplacement sink.

b) Description of the Prior Art

It is well known that computers are becoming more and more advanced,such as some new functions are added to an industrial computer; forexample, for a remote-control system, a surveillance system, and aloading and updating of working data. Some such advances may require newhardware, and outer casings of such equipment are all modularized to therectangular casings. However, when the casing, is inserted into orpulled out from an emplacement sink of the outer casing, the modularizedcasing may be dropped on a ground surface due to an excessive exertionof initiating force (e.g., a pulling force) by a human operation. On theother hand, when the casing is inserted into the emplacement sink, alarge vibration force will be created between the modularized casing andthe emplacement sink to form a tight fit due to an exertion of pressure,such that a very large force should be used if the modularized casing isto be pulled out from the emplacement sink, which is provided with theaforementioned shortcoming.

Moreover, the modularized casing is usually locked and positioned in theemplacement sink by screws, which is very inconvenient in assembling anddismantling; and when a handle is not in use, it is exposed outside ofthe outer casing without being fixed, thereby being easy to be shiftedand protruded out of the outer casing, due to an incorrect applicationof force.

SUMMARY OF THE INVENTION

The primary object of present invention is to provide a handle devicefor a modularized casing, wherein when an inner casing is inserted intoor pulled out from an emplacement sink of an outer casing, a moment offorce is buffered and a direction of movement is correctly controlled,such that an outer end of a handle can be locked into a positioning holeusing a hook, thereby preventing the inner casing from being dropped ona ground surface, due to an excessive exertion of force in pulling outthe inner casing from the emplacement sink; and a large vibration forcewill not be created after inserting the inner casing into theemplacement sink, thereby enabling the handle to be tightly locked andpositioned on the inner casing.

Another object of the present invention is to provide a handle devicefor a modularized casing, wherein the handle can be hidden on aninterior surface of the inner casing without occupying a space.

To enable a further understanding of the said objectives and thetechnological methods of the invention herein, the brief description ofthe drawings below is followed by the detailed description of thepreferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an exploded view of a handle and an inner casing of thepresent invention.

FIG. 2 shows an exploded view of a handle of the present invention.

FIG. 3 shows a horizontal view of motion of assembling an inner casinginto an emplacement sink of outer casing of the present invention.

FIG. 4 shows a horizontal view of motion of pulling out an inner casingfrom an emplacement sink of outer casing of the present invention.

FIG. 5 shows a cross sectional view of an inner casing which isassembled into an emplacement sink of outer casing of the presentinvention.

FIG. 6 shows an exploded view of an assembly of an inner casing of thepresent invention.

FIG. 7 shows an exploded view of an inner casing being inserted into anouter casing of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIG. 1 and FIG. 2, the present invention is to provide ahandle device for a modularized casing which includes a rectangular,modularized inner casing 10, a surface of which is provided with apivoting hole 12; a handle 20, a front end of which is formed with agroove 22 having a pivoting hole 24 on a surface at its rear side, andhaving a front sliding wall 221 and a rear sliding wall 222; aprojection piece 27 in an extended shape which is located at a side ofan outer end of the handle 20; a projection body 271 of a smaller outerdiameter which is formed at an outer end of the projection piece 27 anda longitudinal projection part 28 which is formed at an inner side ofthe projection piece 27; an outer sleeve 50, an interior of which isprovided with a plate-shape groove 51 and a cylindrical groove 52, bothof which are interconnected, and a side edge of the outer sleeve 50being extended into a hollow through-slot 53 and a hook 54 with thethrough-slot 53 providing for a transfixing of the projection part 28;and a spring 55 which is inserted into the cylindrical groove 52 and aconnection end 551 of which is sheathed to the projection body 271 withthe projection piece 27 being transfixed into the plate-shape groove 51.

A positioning hole 14 is located at an edge of side end of the innercasing 10 (as shown in FIG. 1), and the hook 54 can be emplaced in thepositioning hole 14 and can be locked to an inner wall 141 of thepositioning hole 14 (as shown in FIG. 3).

A shaft pin 30 is flexibly connected to the pivoting hole 12 of innercasing 10 and the pivoting hole 24 of handle 20, whereas the handle 20is rotating against the shaft pin 30.

Referring to FIG. 7, an outer casing 40 is provided with more than oneemplacement sink 42, a wall surface of which is provided with a pillar43. In addition, an emplacing space 45 is located between theemplacement sink 42 and the inner casing 10 (as shown in FIG. 5).

When the inner casing 10 is inserted into or pulled out from theemplacement sink 42, the front sliding wall 221 and/or rear sliding wall222 of the groove 22 can be frictionally sliding and a force on acircumferential surface of the pillar 43 (as shown in FIG. 4). Thepillar 43 can be located inside or outside the groove 22, and the handle20 can be moved into or out of the emplacing space 45 (as shown in FIG.5).

Referring to FIG. 1 and FIG. 4, a first projection body 13 is located ona surface of inner casing 10 and on a side surface of tail end of handle20, and a side wall 21 of tail end of handle 20 can be abutted at a sideedge 131 of first projection body 13 to form an interface of forceexertion.

Referring to FIG. 3 and FIG. 4, a second projection body 15 is locatedon a surface of inner casing 10 and on a side surface close to a frontend of handle 20, a notch 26 is located at a side wall of handle 20, andan inner wall 261 of the notch 26 can be abutted at a side edge 151 ofsecond projection body 15.

Referring to FIG. 3 and FIG. 7, an inner casing 10 is emplaced andpositioned in an emplacement sink 42 of outer casing 40, a pillar 43 islocated inside a groove 22, a hook 54 is locked to an inner wall 141 ofa positioning hole 14, and a second projection body 15 is located in anotch 26 such that a side edge 151 is abutted on an inner wall 261. Asshown in FIG. 5, a handle 20 is located in the emplacement sink 45 to behidden, and an outer sleeve 50, which is a plastic product, is protrudedout of an opening of the emplacement sink 42. By locking the hook 54into the positioning hole 14, the handle 20 can be firmly positioned onthe inner casing 10.

Referring to FIG. 4, when an outer sleeve 50 is grabbed by fingers of anoperator and compressed, the outer sleeve 50 will be shifted linearlytoward a direction of the inner side of the handle 20, that is, theouter sleeve 50 will be moved on a projection piece 27, a spring 55 willbe in a contraction status in a cylindrical groove 52, and the hook 54will be shifted simultaneously with the outer sleeve 50 to leave theinner wall 141 for being located at a position of positioning hole 14.Next, the outer sleeve 50 will be pulled by the fingers to rotate by anangle with a shaft pin 30 as a center of axis, and the hook 54 willleave the positioning hole 14, such that the entire handle 20 willbecome a rocker arm (as shown in FIG. 4). As a rear sliding wall 222 isa slope surface having a length, a force can be exerted on acircumferential surface of pillar 43, such that the pillar 43 can form apivot of force, thereby enabling the handle 20 to be formed into amoment arm during an initial process of pulling out the inner casing 10.Accordingly, a slight force can enable the rear sliding wall 222 toexert force to the pillar 43 and to be frictionally sliding on thecircumferential surface of pillar 43, which will further enable theinner casing 10 to be longitudinally moved out of the emplacement sink42 by a certain distance. This action is operationally defined as afirst stage of force exertion. Following that, a palm of human hand isused to hold the entire handle 10 or a front part of the inner casing 10protruded out of the emplacement sink 42, and the entire inner casing 10can be held to be pulled out of the emplacement sink 42.

Referring to FIG. 4, when the handle 20 is rotated by an angle to bepositioned, its side wall 21 is abutted at a side edge 131 of a firstprojection body 13, and the pillar 43 is located outside the groove 22.Therefore, when the inner casing 10 is pulled out along a directionexternal to the emplacement sink 42, the fixed pillar 43 will not touchor interfere with a longitudinal outward movement of the inner casing10.

When the handle 20 in FIG. 4 is rotated in an opposite direction, thegroove 22 is close to the pillar 43, and a front sliding wall 221 isperforming a friction, force exerting, and sliding along thecircumferential surface of pillar 43, such that a final motion ofpressing the inner casing 10 into the emplacement sink 42 will beprovided with effects of a less force or a buffered moment of force. Thepillar 43 is located inside the groove 22 (as shown in an imaginaryposition in FIG. 4), the handle 20 is hidden in the emplacing space 45(as shown in FIG. 5), and the fingers are away from the outer sleeve 50.As shown in FIG. 3, the spring 55 is restored, which drives the entireouter sleeve 50 to move outward and the hook 54 to be locked into theinner wall 141 of the positioning hole 14, so as to enable the handle 20to be firmly positioned on the inner casing 10 (as shown in FIG. 6),without changing its position even when the handle 20 is subjected to anincorrect force.

An initiating force exerted upon pulling out the inner casing 10 fromthe emplacement sink 42 is provided with an effect of buffered moment offorce, which can correctly control a direction of initial movement ofthe inner casing 10. In other words, as long as an operator uses fingersto hold the handle 20 and exert an initial force of rotation, the innercasing 10 can be longitudinally moved out of the emplacement sink 42 bya pre-determined distance L (as shown in FIG. 4). Therefore, a humanpalm can hold a part of volume of the inner casing 10 protruded out ofthe emplacement sink 42, to firmly pull out the inner casing 10 from theemplacement sink 42, without worrying that the inner casing 10 will bedropped on a ground surface due to an excessive exertion of force. Inaddition, the handle 20 is provided with a pre-determined length;therefore, the longer the moment arm is, the smaller the moment of forcecreated by an exertion end is; which can save strength of initialoperation of the palm.

As the final force exerted to emplace the inner casing 10 in theemplacement sink 42 is provided with the effect of buffered moment offorce, the final direction of movement of the inner casing 10 can becorrectly controlled, and the inner wall 261 of notch 26 is abutted at aside edge 151, hence the entire side wall 21 of handle 20 will not be incontact with the inner casing 10.

Referring to FIG. 2, the projection part 28 is located in thethrough-slot 53, which is used to prevent the entire outer sleeve 50from sliding out of the projection piece 27.

It is of course to be understood that the embodiments described hereinis merely illustrative of the principles of the invention and that awide variety of modifications thereto may be effected by persons skilledin the art without departing from the spirit and scope of the inventionas set forth in the following claims.

1. A handle device for a modularized casing comprising a rectangular,modularized inner casing, a surface of which is provided with a pivotinghole; a handle, a front end of which is formed with a groove having apivoting hole on a surface at its rear side, and having a front slidingwall and a rear sliding wall; a projection piece in an extended shapewhich is located at a side of an outer end of the handle; a projectionbody of a smaller outer diameter which is formed at an outer end of theprojection piece and a longitudinal projection part which is formed atan inner side of the projection piece; an outer sleeve, an interior ofwhich is provided with a plate-shape groove and a cylindrical groove,both of which are interconnected, and a side edge of the outer sleevebeing extended into a hollow through-slot and a hook with thethrough-slot providing for a transfixing of the projection part; aspring which is inserted into the cylindrical groove and a connectionend of which is sheathed to the projection body with the projectionpiece being transfixed into the plate-shape groove; a hook which can beemplaced in the positioning hole and can be locked to an inner wall ofpositioning hole; a shaft pin which is flexibly to the pivoting hole ofinner casing and the pivoting hole of handle with the handle beingrotated against the shaft pin; an outer casing which is provided with atleast more than one emplacement sink, with a pillar being located on awall of the emplacement sink and an emplacing space located between theemplacement sink and the inner casing; when the inner casing is insertedinto or pulled out from the emplacement sink, the front sliding wall andrear sliding wall of the groove are able to be frictionally sliding andexerts a force on a circumferential surface of the pillar which can belocated inside or outside the groove; the handle is able to be movedinto or out of the emplacing space.
 2. The handle device for amodularized casing according to claim 1, wherein a first projection bodyis located on a surface of inner casing and on a side surface of tailend of handle, and a side wall of tail end of handle can be abutted at aside edge of first projection body, so as to form an interface of forceexertion.
 3. The handle device for a modularized casing according toclaim 1, wherein a second projection body is located on a surface ofinner casing and on a side surface close to a front end of handle, anotch is located on a side wall of handle, and an inner wall of notchcan be abutted at a side wall of second projection body.